docs: def is_searchable(self):
          """A bool value that indicates whether the name is a valid name to 
          search by."""
          first = alpha_chars(self.first or u'')
          last = alpha_chars(self.last or u'')
          raw = alpha_chars(self.raw or u'')
          return (len(first) >= 2 and len(last) >= 2) or len(raw) >= 4